Patent US3063820A successfully refreshed from Google Patents.
US3063820A
Expired / Lapsed
US
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Stabilization of hydrocarbons
Assignee: Universal Oil Products Co
•
Filing: 1959-05-18
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Granted: 1962-11-13
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Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Chenicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:23
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2658; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/08; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10N; C10N2040/00; C10N2040/135; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A HYDROCARBON FLUID CONTAINING A STABILIZING CONCENTRATION OF AN ALKYL ACID PHOSPHATE SALT OF AN N,N''-DIALKYLP-PHENYLENE DIAMINE.
Claim 2
Dependent Claim
17 words
A HYDROCARBON FLUID CONTAINING A STABILIZING CONCENTRATION OF AN ALKYL ACID PHOSPHATE SALT OF AN N,N''-DIALKYLP-PHENYLENE DIAMINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |